An X-ray scanning system includes: a housing configured to be handheld; an X-ray source for scanning a target; a set of first detectors configured to be mechanically coupled to the housing and to detect resulting X-rays received from the target responsive to scanning the target; a second detector configured to be mechanically coupled to the housing; and a set of processors mechanically coupled to the housing and communicatively linked to the first detector and to the second detector so as to receive first and second signals, respectively, therefrom. The processor(s) are configured to: generate an image of the target based on the first signal; distinguish, in the second signal, a contribution of passive nuclear radiation detected at the second detector; and provide an output corresponding to the contribution of passive nuclear radiation. A related system for identifying a radioactive isotope, along with corresponding methods, are provided.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
G01V 5/20 - Détection de biens prohibés, p. ex. des armes, des explosifs, des substances dangereuses ou des objets de contrebande ou non déclarés
An X-ray scanning system includes: an X-ray source configured to irradiate a target with source X-rays in the course of relative motion between the X-ray source and the target; a feature sensor configured to sense a feature of the target in the course of the relative motion; and a communication interface operatively coupled to the feature sensor and configured to output a blanking signal responsive to the feature sensor sensing the feature of the target.
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/20008 - Détails de construction des appareils d’analyse, p. ex. caractérisés par la source de rayons X, le détecteur ou le système optique à rayons XLeurs accessoiresPréparation d’échantillons à cet effet
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
3.
Determination of Material Composition Using Compton Scatter
A method of determining material composition of a target includes identifying a component of the material composition of the target by matching a Compton scattering background, in a spectrum of detected X-rays acquired by irradiating the target with a source of X-rays during a nominal source exposure time period, to a Compton scattering spectrum for the component; and reporting the material composition of the target including the identified component of the material composition.
G01N 23/2206 - Combinaison de plusieurs mesures, l'une au moins étant celle d’une émission secondaire, p. ex. combinaison d’une mesure d’électrons secondaires [ES] et d’électrons rétrodiffusés [ER]
G01N 23/20066 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la diffusion inélastique des rayons gamma, p. ex. effet Compton
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
An x-ray imaging apparatus includes a holdable housing; an x-ray source mounted within the housing and configured to output a fan beam of x-rays; and a hoop chopper wheel rotatably mounted within the housing and comprising an x-ray attenuating material configured to block x-rays of the fan beam. The hoop chopper wheel defines a set of beam apertures of which each aperture is configured to pass therethrough a corresponding angular portion of x-rays from the fan beam, so that rotation of the hoop chopper wheel causes scanning of the corresponding angular portion of x-rays. The x-ray source may be a transmission-type x-ray tube configured to output the fan beam centered in an x-ray extraction direction forming an angle greater than 0 degrees with respect to a longitudinal axis of the x-ray tube.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
A method of detecting a material, and corresponding system, include irradiating a target during an irradiation period with source x-rays; detecting imaging x-rays and x-ray fluorescence received from the target resulting from the irradiating during the irradiation period; and providing an indication of the material being potentially present in the target, the indication based on both analyzing an x-ray image generated from the detected imaging x-rays and on analyzing the detected x-ray fluorescence for characteristic x-ray fluorescence that can be emitted from the material.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/20 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux
7.
MULTI-VIEW INSPECTION PORTAL WITH INTERWEAVED X-RAY BEAMS
A multi -view X-ray inspection portal includes: a portal structure permitting travel of a target object in a travel direction there through. First, second, and third X- ray source modules are mounted at the portal structure with offsets between them, parallel to the travel direction. The X-ray sources output first, second, and third X-ray beams, respectively, to irradiate the target. A set of scatter detectors receives X-rays that are scattered from the target object. The third X-ray source module is disposed between the first and second X-ray source modules parallel to the travel direction. The first and second X-ray beams are simultaneously active and interleaved temporally with the third X-ray beam. In the inspection portal and a corresponding method, the inspection portal may be very compact, while maintaining throughput speed and resolution.
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
8.
Multi-View Inspection Portal With Interweaved X-Ray Beams
A multi-view X-ray inspection portal includes: a portal structure permitting travel of a target object in a travel direction there through. First, second, and third X-ray source modules are mounted at the portal structure with offsets between them, parallel to the travel direction. The X-ray sources output first, second, and third X-ray beams, respectively, to irradiate the target. A set of scatter detectors receives X-rays that are scattered from the target object. The third X-ray source module is disposed between the first and second X-ray source modules parallel to the travel direction. The first and second X-ray beams are simultaneously active and interleaved temporally with the third X-ray beam. In the inspection portal and a corresponding method, the inspection portal may be very compact, while maintaining throughput speed and resolution.
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
G01V 5/226 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques utilisant la tomographie
9.
X-Ray Detection Structure with a Plurality of Scintillator Volumes in a Spatially Periodic Arrangement
An x-ray detection structure includes a plurality of scintillator volumes in a spatially periodic arrangement, the plurality of scintillator volumes spaced from each other and forming a scan axis at which x-rays from a scanning beam of x-rays transmitted through a target can be received. The scintillator volumes produce scintillation photons responsive to receiving the x-rays. The structure also includes a wavelength-shifting fiber (WSF) ribbon optically coupled to the plurality of scintillator volumes along the scan axis. The WSF ribbon receives scintillation photons from the plurality of scintillator volumes as the scanning beam of x-rays scans and causes at least a subset of scintillator volumes to produce the scintillation photons. A multi-layer version of the structure, corresponding x-ray detection systems, and corresponding methods of manufacturing can be used to produce higher-resolution x-ray images in a compact detector with ease of manufacturability.
G01T 1/20 - Mesure de l'intensité de radiation avec des détecteurs à scintillation
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
A method for colorizing an output X-ray image includes assigning intensity values, as a function of scatter pixel values of a scatter X-ray image of the target, to a plurality of output pixel values characterizing the output X-ray image, the scatter X-ray image acquired by detecting scattered X-rays scattered by the target upon a scanning X-ray pencil beam being incident at the target. The method further includes colorizing the output X-ray image by assigning color values, as a function of transmission pixel values of a transmission X-ray image of the target, to the plurality of output pixel values, the transmission X-ray image acquired by detecting the scanning X-ray pencil beam transmitted through the target..
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/20 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
An x-ray scanning system, and corresponding method, includes an x-ray source that produces incident x-ray radiation having end-point x-ray energy, which, in various embodiments, can be greater than about 200 keV, between about 200 keV and about 500 keV, or greater than about 500 keV. The system also includes a disk chopper wheel that can be irradiated by and attenuate the incident x-ray radiation. The disk chopper wheel further defines one or more slits configured to pass the incident x-ray radiation through the disk chopper wheel for scanning a target. In some embodiments, the high end-point x-ray energies with disk chopper wheels are facilitated by forming the incident x-ray radiation as a collimated fan beam and/or orienting the chopper wheel with a wheel plane substantially non-perpendicular to a fan beam plane, increasing effective thickness of a disk chopper wheel to attenuate incident x-rays of higher energies.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G01V 5/22 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
12.
X-Ray Scanning Module and System with Electronic Gating
An x-ray scanning module includes an x-ray source having an electronic gate configured to have an ON state wherein the electronic gate enables the x-ray source to provide source x-rays, and to have an OFF state wherein the electronic gate disables the x-ray source from providing the source x-rays. The x-ray source is configured to receive a control signal that sets the electronic gate to the ON state and the OFF state selectively. The module further includes a rotatably mounted chopper wheel configured, when the electronic gate is in the ON state, to receive the source x-rays from the x-ray source and to provide a scanning beam output, wherein rotation of the chopper wheel causes scanning of the scanning beam output. Corresponding systems and methods can have benefits including reducing interference in arrangements that are multi-view or include a radiation portal monitor.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
An x-ray chopper wheel assembly includes a disk chopper wheel and a source-side scatter plate that has a solid cross-sectional area that absorbs x-ray radiation and is substantially smaller than a solid cross-sectional area of the disk chopper wheel. The assembly also includes a support structure that secures the source-side scatter plate substantially parallel to the disk chopper wheel, with a source-side gap between the scatter plate and the disk chopper wheel being a distance that substantially prevents x-ray leakage. An additional, output-side scatter plate may also be provided to reduce x-ray leakage further. Embodiments enable safe operation while significantly reducing weight, which is advantageous for a variety of disk-chopper-wheel-based x-ray scanning systems, especially hand-held x-ray scanners.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
A coated aerogel, and corresponding method, includes an aerogel and a polymer coating on at least a portion of a surface of the aerogel. The coated aerogel further includes a second coating on at least a portion of a surface of the polymer coating. The second coating can be electrically conductive and/or patterned.
H01J 49/04 - Dispositions pour introduire ou extraire les échantillons devant être analysés, p. ex. fermetures étanches au videDispositions pour le réglage externe des composants électronoptiques ou ionoptiques
An apparatus for steerable x-ray inspection of a sample includes an outer housing that can be inserted into an interior of the sample via a flexible insertion member; an x-ray source within the outer housing that can output source x-rays into the sample; an x-ray detector within the housing and capable of detecting fluorescence x-rays emitted from the sample upon excitation by the source x-rays; and a steering device coupled to an end of the insertion member and configured to adjust, selectively, a position of the flexible insertion member for steering the outer housing within the sample.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
A method, and corresponding system, provides enhanced security threat detection. The method includes: irradiating a target from a stationary x-ray source having end-point energy of at least 88 keV; enabling target motion with respect to the stationary x-ray source; detecting resulting x-rays received from the target; generating an image of an interior of the target based on the resulting x-rays; performing analysis of the image for an indication of a weapon; producing signals representing an energy spectrum of the resulting x-rays; analyzing the signals for characteristic x-ray fluorescence that can be emitted from lead potentially present in the target; providing an indication, based on the signals, of a probability of lead ammunition being present; and outputting an indication of likelihood of a security threat based on the analysis of the image for the weapon indication and the probability of lead ammunition.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
G01V 5/22 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques
17.
Low-Profile X-Ray Scanning Source with Ring Collimator
An x-ray beam generator includes an x-ray source and a collimation ring to generate a sweeping x-ray beam. The x-ray source emits a beam of x-ray radiation through an opening in an enclosure. The collimation ring defines one or more apertures, and encompasses the enclosure at the opening and has an outer diameter less than 150% of an outer diameter of the enclosure at the opening. A support bearing is coupled to the collimation ring and enables the collimation ring to rotate about the x-ray source. A drive system rotates the collimation ring about the x-ray source during activation of the x-ray source to form the sweeping x-ray beam via the one or more apertures.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
18.
Mobile backscatter imaging system with dual-sided inspection
An x-ray inspection system includes a vehicle, a mobile conveyance, and first and second x-ray scanning modules. The first module is transportable directly or indirectly, via a transport of the vehicle, to an inspection site, and it can irradiate a near side of an object to be inspected at the site with a first x-ray scanning beam. The second scanning module is transportable to the inspection site via a combination of the mobile conveyance and the vehicle, and the second module is movable and positioned at the inspection site, via the mobile conveyance, to irradiate a far side of the object with a second x-ray scanning beam. The vehicle and the mobile conveyance are configured to be mechanically coupled together during the transport and to be mechanically decoupled from each other at the inspection site. The system enables dual-sided x-ray backscatter inspection using a mobile platform.
G01V 5/222 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques mesurant les rayons diffusés
A system for inspecting an object includes a turntable on which the object may be placed. The turntable rotates the object about a first rotation axis. The system also includes an X-ray source to generate an X-ray beam in a plane to intersect with the object. The system also includes an X-ray detector that can detect at least a portion of the X-ray beam transmitted through the object during rotation and generate image data based on the detected X-ray beam. Also included is a controller that can: generate an image of the object based on the image data; determine, based on a suspect item identified in the image of the object, a second rotation axis at an angle from the first axis; cause a tilt of the turntable so that it is perpendicular to the second axis; and initiate a subsequent rotation of the object about the second axis.
G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p. ex. la tomographie informatisée
G01N 23/083 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le rayonnement consistant en rayons X
G01N 23/10 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le matériau étant confiné dans un récipient, p. ex. scanners de bagage à rayons X
G01N 23/20 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01V 5/22 - Interrogation active, c.-à-d. par irradiation des objets ou des biens à l’aide de sources de rayonnement externes, p. ex. en utilisant des rayons gamma ou des rayons cosmiques
An x-ray imaging apparatus includes a holdable housing; an x-ray source mounted within the housing and configured to output a fan beam of x-rays; and a hoop chopper wheel rotatably mounted within the housing and comprising an x-ray attenuating material configured to block x-rays of the fan beam. The hoop chopper wheel defines a set of beam apertures of which each aperture is configured to pass therethrough a corresponding angular portion of x-rays from the fan beam, so that rotation of the hoop chopper wheel causes scanning of the corresponding angular portion of x-rays. The x-ray source may be a transmission-type x-ray tube configured to output the fan beam centered in an x-ray extraction direction forming an angle greater than 0 degrees with respect to a longitudinal axis of the x-ray tube.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
A61B 6/40 - Agencements pour générer des radiations spécialement adaptés au diagnostic par radiations
A61B 6/42 - Agencements pour détecter des radiations spécialement adaptés au diagnostic par radiations
An x-ray imaging apparatus includes a holdable housing; an x-ray source mounted within the housing and configured to output a fan beam of x-rays; and a hoop chopper wheel rotatably mounted within the housing and comprising an x-ray attenuating material configured to block x-rays of the fan beam. The hoop chopper wheel defines a set of beam apertures of which each aperture is configured to pass therethrough a corresponding angular portion of x-rays from the fan beam, so that rotation of the hoop chopper wheel causes scanning of the corresponding angular portion of x-rays. The x-ray source may be a transmission-type x-ray tube configured to output the fan beam centered in an x-ray extraction direction forming an angle greater than 0 degrees with respect to a longitudinal axis of the x-ray tube.
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
A system for detecting a scanning beam of x-rays includes one or more scintillator volumes oriented along an x-ray scan axis. The scintillator volume(s) receive x-rays transmitted through a target and produce scintillation photons responsively. Two or more ribbons of wavelength-shifting fibers (WSFs) are optically coupled to the scintillator volume(s) along the axis via a spatial periodic adjacency of the ribbons to the axis. The ribbons receive scintillation photons from the scintillator volume(s) via the spatial periodic adjacency as the x-ray beam scans over the scan axis. At least one respective photodetector coupled to an end of each respective ribbon detects the scintillation photons carried by the respective ribbon produces a respective signal. A signal combiner selectively combines signals from one or more ribbons, for beam positions along the scan axis, to create a combined signal representing a scan of the target. The scan can have enhanced spatial resolution.
A61B 6/00 - Appareils ou dispositifs pour le diagnostic par radiationsAppareils ou dispositifs pour le diagnostic par radiations combinés avec un équipement de thérapie par radiations
A61B 6/40 - Agencements pour générer des radiations spécialement adaptés au diagnostic par radiations
A system, and corresponding method, includes: a stationary x-ray source configured to irradiate a target with source x-rays having an end-point energy of at least 88 keV during an irradiation period; a motion enablement feature configured to enable motion of the target with respect to the stationary x-ray source during the irradiation period; a set of energy-resolving detectors configured to detect resulting x-rays received from the target resulting from the irradiation during the irradiation period and to produce signals representing an energy spectrum of the resulting x-rays; and an analyzer configured to analyze the signals for characteristic x-ray fluorescence that can be emitted from lead potentially present in the target and to provide an indication, based on the signals, of a probability of lead ammunition being present in the target.
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
A system, and corresponding method, includes: a stationary x-ray source configured to irradiate a target with source x-rays having an end-point energy of at least 88 keV during an irradiation period; a motion enablement feature configured to enable motion of the target with respect to the stationary x-ray source during the irradiation period; a set of energy-resolving detectors configured to detect resulting x-rays received from the target resulting from the irradiation during the irradiation period and to produce signals representing an energy spectrum of the resulting x-rays; and an analyzer configured to analyze the signals for characteristic x-ray fluorescence that can be emitted from lead potentially present in the target and to provide an indication, based on the signals, of a probability of lead ammunition being present in the target.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
25.
Configurable Detector Panel for an X-Ray Imaging System
A handheld or portable x-ray imaging system includes a housing containing an x-ray source for generating a sweeping beam, and an external detector panel mounted onto a positioning arm to allow an operator to position the external detector panel relative to the housing. The detector panel may have a width of between 1 inch and 18 inches. Embodiments allow for portable x-ray scanning in locations that can otherwise be difficult or impossible to reach with existing handheld detectors.
G01N 23/20008 - Détails de construction des appareils d’analyse, p. ex. caractérisés par la source de rayons X, le détecteur ou le système optique à rayons XLeurs accessoiresPréparation d’échantillons à cet effet
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/083 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le rayonnement consistant en rayons X
A scanning system inspects objects via X-ray imaging. An object is placed on a turntable, which rotates the object about a substantially vertical axis. An X-ray source generates an X-ray beam in a substantially vertical plane. The X-ray detector detects at least a portion of the X-ray beam transmitted through the object during rotation and generates image data based on the detected X-ray beam. A controller generates an image of the object based on the image data.
A target inspection system includes a portable x-ray scanner configured to output a scanning beam of x-rays, a transmission detector module to detect x-rays of the scanning beam of x-rays that are transmitted through a target when the target is interposed between the portable x-ray scanner and the transmission detector module, and a coupling arm configured to couple the portable x-ray scanner to the transmission detector module mechanically to form a target inspection assembly, via a mechanical coupling between the coupling arm and the portable x-ray scanner at a proximal end of the coupling arm, and via a mechanical coupling between the coupling arm and the transmission detector module at a distal end of the coupling arm. The transmission detector module and the portable x-ray scanner are mechanically coupled together via the coupling arm, defining an opening to receive the target to be interposed therebetween for an x-ray scanning operation.
A target inspection system includes a portable x-ray scanner configured to output a scanning beam of x-rays, a transmission detector module to detect x-rays of the scanning beam of x-rays that are transmitted through a target when the target is interposed between the portable x-ray scanner and the transmission detector module, and a coupling arm configured to couple the portable x-ray scanner to the transmission detector module mechanically to form a target inspection assembly, via a mechanical coupling between the coupling arm and the portable x-ray scanner at a proximal end of the coupling arm, and via a mechanical coupling between the coupling arm and the transmission detector module at a distal end of the coupling arm. The transmission detector module and the portable x-ray scanner are mechanically coupled together via the coupling arm, defining an opening to receive the target to be interposed therebetween for an x-ray scanning operation.
G01N 23/10 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le matériau étant confiné dans un récipient, p. ex. scanners de bagage à rayons X
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01N 23/083 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le rayonnement consistant en rayons X
G01N 23/18 - Recherche de la présence de défauts ou de matériaux étrangers
29.
Device and method for determining a material composition of a pipe
A device, and corresponding method, for determining a presence of lead in a material composition of a pipe includes a probe, a resonant frequency measurement circuit, and a material analyzer. The probe includes an oscillator circuit and can be inserted into an interior cavity of the pipe and emit electromagnetic radiation. The frequency measurement circuit operatively communicates with the oscillator circuit and outputs resonant electromagnetic frequency measurement data indicating a resonant electromagnetic frequency of the oscillator circuit. The material analyzer receives the resonant electromagnetic frequency measurement data, and an additional measurement selected from the group consisting of (i) a measurement of power dissipation of the oscillator circuit and (ii) an interior diameter of the pipe, and outputs a positive or negative indication of whether lead is present in the material composition based on the resonant electromagnetic frequency measurement data and the additional measurement.
G01N 27/02 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance
G01B 21/14 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer des diamètres des diamètres intérieurs
An x-ray detection structure includes a plurality of scintillator volumes in a spatially periodic arrangement, the plurality of scintillator volumes spaced from each other and forming a scan axis at which x-rays from a scanning beam of x-rays transmitted through a target can be received. The scintillator volumes produce scintillation photons responsive to receiving the x-rays. The structure also includes a wavelength-shifting fiber (WSF) ribbon optically coupled to the plurality of scintillator volumes along the scan axis. The WSF ribbon receives scintillation photons from the plurality of scintillator volumes as the scanning beam of x-rays scans and causes at least a subset of scintillator volumes to produce the scintillation photons. A multi-layer version of the structure, corresponding x-ray detection systems, and corresponding methods of manufacturing can be used to produce higher-resolution x-ray images in a compact detector with ease of manufacturability.
An x-ray scanning system, and corresponding method, includes an x-ray source that produces incident x-ray radiation having end-point x-ray energy, which, in various embodiments, can be greater than about 200 keV, between about 200 keV and about 500 keV, or greater than about 500 keV. The system also includes a disk chopper wheel that can be irradiated by and attenuate the incident x-ray radiation. The disk chopper wheel further defines one or more slits configured to pass the incident x-ray radiation through the disk chopper wheel for scanning a target. In some embodiments, the high end-point x-ray energies with disk chopper wheels are facilitated by forming the incident x-ray radiation as a collimated fan beam and/or orienting the chopper wheel with a wheel plane substantially non-perpendicular to a fan beam plane, increasing effective thickness of a disk chopper wheel to attenuate incident x-rays of higher energies.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
32.
Compact insertable x-ray fluorescence device for pipe inspection
Elemental composition of a pipe is determined by a fluorescence x-ray detector device. An outer housing of the device is inserted into the pipe via a flexible insertion member. A radioactive x-ray source is encompassed by a shield within the housing. A shutter selectively opens to enable radiation from the x-ray source to exit the shield and illuminate an inner wall of the pipe. An x-ray detector within the housing detects fluorescence x-rays emitted from the pipe upon illumination by the x-ray source. A controller then determines the presence of one or more elemental materials contained within the pipe based on the fluorescence x-rays.
G01N 23/223 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en irradiant l'échantillon avec des rayons X ou des rayons gamma et en mesurant la fluorescence X
An apparatus for generating high voltage (HV) driving signals associated with an ion mobility detector comprises a ground-based HV base module and a HV deck module coupled by an interconnect module. The HV base module implements dual power supplies that together drive a drift tube voltage signal to the high-voltage-based deck module. Each of the power supplies is regulated by a combination open loop and closed loop controller. The HV deck module implements one or more grid modules that generate a bipolar voltage that floats on the drift tube voltage signal. Also included may be a pulse generator configured to generate at least one synchronizing timing pulse. Power supplies within the apparatus may be synchronized based on the synchronization timing pulse.
An apparatus for generating high voltage (HV) driving signals associated with an ion mobility detector comprises a ground-based HV base module and a HV deck module coupled by an interconnect module. The HV base module implements dual power supplies that together drive a drift tube voltage signal to the high-voltage-based deck module. Each of the power supplies is regulated by a combination open loop and closed loop controller. The HV deck module implements one or more grid modules that generate a bipolar voltage that floats on the drift tube voltage signal. Also included may be a pulse generator configured to generate at least one synchronizing timing pulse. Power supplies within the apparatus may be synchronized based on the synchronization timing pulse.
An x-ray chopper wheel assembly, and corresponding method, include a chopper wheel having a solid area configured to block x-ray radiation received at a source side of the chopper wheel from an x-ray source. The chopper wheel defines one or more openings configured to pass x-ray radiation from the source side of the chopper wheel to an output side of the chopper wheel. The assembly further includes a source-side scatter plate arranged relative to the chopper wheel with a source-side gap in a range of approximately 0.2 mm to approximately 2.0 mm between the source-side scatter plate and the source side of the chopper wheel. The assembly and method can be used to limit leakage of scattered x-rays from the assembly, such as to safe levels for operation, while being significantly lighter than existing confinement enclosures.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G21K 1/10 - Dispositifs de diffusionDispositifs d'absorption
An apparatus for generating high voltage (HV) driving signals associated with an ion mobility detector comprises a ground-based HV base module and a HV deck module coupled by an interconnect module. The HV base module implements dual power supplies that together drive a drift tube voltage signal to the high-voltage-based deck module. Each of the power supplies is regulated by a combination open loop and closed loop controller. The HV deck module implements one or more grid modules that generate a bipolar voltage that floats on the drift tube voltage signal. Also included may be a pulse generator configured to generate at least one synchronizing timing pulse. Power supplies within the apparatus may be synchronized based on the synchronization timing pulse.
An x-ray inspection system includes a vehicle, a mobile conveyance, and first and second x-ray scanning modules. The first module is transportable directly or indirectly, via a transport of the vehicle, to an inspection site, and it can irradiate a near side of an object to be inspected at the site with a first x-ray scanning beam. The second scanning module is transportable to the inspection site via a combination of the mobile conveyance and the vehicle, it the second module is movable and positioned at the inspection site, via the mobile conveyance, to irradiate a far side of the object with a second x-ray scanning beam. The vehicle and the mobile conveyance are configured to be mechanically coupled together during the transport and to be mechanically decoupled from each other at the inspection site. The system enables dual-sided x-ray backscatter inspection using a mobile platform.
An x-ray beam generator includes an x-ray source and a collimation ring to generate a sweeping x-ray beam. The x-ray source emits a beam of x-ray radiation through an opening in an enclosure. The collimation ring defines one or more apertures, and encompasses the enclosure at the opening and has an outer diameter less than 150% of an outer diameter of the enclosure at the opening. A support bearing is coupled to the collimation ring and enables the collimation ring to rotate about the x-ray source. A drive system rotates the collimation ring about the x-ray source during activation of the x-ray source to form the sweeping x-ray beam via the one or more apertures.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
A pipe inspection system (100) includes a portable x-ray scanner(102) that can output a scanning beam of x-rays (104); a transmission detector module (106) that can detect x-rays of the scanning beam that are transmitted through a pipe (108); a coupling member (104) that can couple the portable x-ray scanner (102) to the transmission detector module (106) mechanically to form a pipe inspection assembly; and a motion constraint feature (114) that can constrain motion of the inspection assembly (100) with respect to the pipe (108) in a radial direction of the pipe. The motion constraint feature (114) also permits, and may also facilitate, translational motion of the pipe inspection assembly in a pipe's axial direction. Efficient, high-quality x-ray imaging of pipes can be achieved with minimal alignment concern, ease of any alignment needed, and greater efficiency of engagement and disengagement with the pipe, even with handheld operation.
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
40.
Multipurpose sampling apparatus for chemical analyzer
A sampling apparatus includes a wand extension coupled with a trace detection head and a bulk detection head. The trace detection head collects a maximum amount of a sample for a trace detection analysis. The bulk detection head collects a minimal amount of a substance for use in bulk sample identification.
An x-ray imaging system, and a corresponding kit and method, includes a movable x-ray imager that includes a first backscatter x-ray detector assembly. The system also includes a second backscatter x-ray detector assembly that is removably attachable with the movable x-ray imager. The movable x-ray imager and the second backscatter x-ray detector include complementary attachment features configured to secure, removably, the second backscatter x-ray detector assembly with the movable x-ray imager to form an attached arrangement having the second and first backscatter x-ray detectors fixedly oriented with respect to each other. The second backscatter x-ray detector assembly forms an outer loop defining an inner opening at which the movable x-ray imager is configured to be received for attachment of the second backscatter x-ray detector assembly with the movable x-ray imager to form the attached arrangement.
G01N 23/20008 - Détails de construction des appareils d’analyse, p. ex. caractérisés par la source de rayons X, le détecteur ou le système optique à rayons XLeurs accessoiresPréparation d’échantillons à cet effet
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
An x-ray scanning assembly includes a disk chopper wheel configured to be irradiated by an x-ray beam and to block x-ray radiation of the x-ray beam, the wheel having a rim and a center. The disk chopper wheel defines therein two or more radial slits extending radially toward a rim and a center of the wheel, the slits configured to pass x-ray radiation of the x-ray beam therethrough and having at least two respective, distinct widths. An x-ray beam collimation system includes an x-ray source configured to output x-ray radiation; a collimator configured to receive the x-ray radiation form a collimated x-ray fan beam to be received at a chopper wheel. The collimated x-ray fan beam has a cross-sectional length and a cross-sectional width, smaller than the length, measured at the chopper wheel. The collimator includes a width adjustor configured to adjust width of the fan beam.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G21K 1/10 - Dispositifs de diffusionDispositifs d'absorption
A system for detecting a scanning beam of x-rays includes one or more scintillator volumes oriented along an x-ray scan axis. The scintillator volume(s) receive x-rays transmitted through a target and produce scintillation photons responsively. Two or more ribbons of wavelength-shifting fibers (WSFs) are optically coupled to the scintillator volume(s) along the axis via a spatial periodic adjacency of the ribbons to the axis. The ribbons receive scintillation photons from the scintillator volume(s) via the spatial periodic adjacency as the x-ray beam scans over the scan axis. At least one respective photodetector coupled to an end of each respective ribbon detects the scintillation photons carried by the respective ribbon produces a respective signal. A signal combiner selectively combines signals from one or more ribbons, for beam positions along the scan axis, to create a combined signal representing a scan of the target. The scan can have enhanced spatial resolution.
An x-ray imaging apparatus includes an x-ray source module configured to output source x-rays, a pencil-beam-forming module having input and output ports, and a module engagement interface that enables a user to select aligned and non-aligned configurations of the source and pencil-beam-forming modules. In the aligned configuration, the pencil-beam-forming module is aligned with the source module to receive source x-rays at the input port and to output a scanning pencil beam through the output port toward a target. In the non-aligned configuration, the pencil-beam-forming module is not aligned with the x-ray source module to receive the source x-rays nor to output the pencil beam, but instead enables the source x-rays to form a stationary, wide-area beam directed toward the target. Example embodiments can be handheld, can enable both backscatter imaging and high-resolution transmission imaging using the same apparatus, and can be employed in finding and disarming explosive devices.
G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
G01N 23/20008 - Détails de construction des appareils d’analyse, p. ex. caractérisés par la source de rayons X, le détecteur ou le système optique à rayons XLeurs accessoiresPréparation d’échantillons à cet effet
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01N 23/10 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le matériau étant confiné dans un récipient, p. ex. scanners de bagage à rayons X
An x-ray imaging apparatus includes an x-ray source module (1502) configured to output source x-rays, a pencil-beam-forming module (1506) having input and output ports, and a module engagement interface that enables a user to select aligned and non-aligned configurations of the source and pencil-beam-forming modules. In the aligned configuration, the pencil-beam-forming module is aligned with the source module to receive source x-rays at the input port and to output a scanning pencil beam through the output port toward a target. In the non-aligned configuration, the pencil-beam-forming module is not aligned with the x-ray source module to receive the source x-rays nor to output the pencil beam, but instead enables the source x-rays to form a stationary, wide- area beam (1602) directed toward the target. Example embodiments can be handheld, can enable both backscatter imaging and high- resolution transmission imaging using the same apparatus, and can be employed in finding and disarming explosive devices.
Aerogel can be coated with a polymerizable resin, which cures to form a polymer-coated aerogel. The coated aerogels can be used structural or thermal insulating component, such as in analytical and scientific devices. Coated aerogels can be further coated with conductive material, a semi-conductive material, a non-conductive material, a resistive material, or a combination thereof.
H01J 49/04 - Dispositions pour introduire ou extraire les échantillons devant être analysés, p. ex. fermetures étanches au videDispositions pour le réglage externe des composants électronoptiques ou ionoptiques
A system for inspecting a moving person comprises an x-ray source, disposed in a fixed position with respect to the moving person, to generate one or more scanning x-ray beams. Each of the one or more x-ray beams being obliquely incident on either a front of the moving person, a rear of the moving person, or both. The system further comprises one or more backscatter detectors arranged to detect radiation scattered from the moving person, and to produce a detection signal therefrom. The system further comprises a processor and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to produce a backscatter image based on the detection signal. When two or more x-ray beams are implemented, the two or more x-ray beams are temporarily interleaved to prevent crosstalk.
G01T 1/167 - Mesure du contenu radioactif des objets, p. ex. contamination
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01T 1/203 - Mesure de l'intensité de radiation avec des détecteurs à scintillation le détecteur étant fait de matières plastiques
An x-ray scanning system includes an x-ray source that produces a collimated fan beam of incident x-ray radiation. The system also includes a chopper wheel that can be irradiated by the collimated fan beam. The chopper wheel is oriented with a wheel plane containing the chopper wheel substantially non-perpendicular relative to a beam plane containing the collimated fan beam. In various embodiments, a disk chopper wheel's effective thickness is increased, allowing x-ray scanning with end point energies of hundreds of keV using relatively thinner, lighter, and less costly chopper wheel disks. Backscatter detectors can be mounted to an exterior surface of a vehicle housing the x-ray source, and slits in the disk chopper wheel can be tapered for more uniform target irradiation.
G21K 5/10 - Dispositifs d'irradiation pourvus de dispositions permettant un mouvement relatif entre la source du rayonnement et l'objet à irradier
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
49.
Vehicle barrier apparatus and method with transfer force deployment
A vehicle barrier apparatus and corresponding methods include a base and a vehicle receiving member coupled to the base and having proximal and distal ends. Also included is a deployable element rotatably coupled to the base and coupled to the vehicle receiving member at a mechanical coupler located closer to the distal end than to the proximal end. The deployable element is configured to receive a transfer force, from the vehicle receiving member, via the mechanical coupler, responsive to the vehicle receiving member receiving an applied force from a vehicle at the proximal end. The deployable element configured to deploy from a stored orientation to a deployed orientation responsive to the transfer force. Accordingly, vehicle force can be transferred and used to deploy the device effectively in a self-triggered configuration without hazards of stored energy.
E01F 13/12 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières pour arrêter de force les véhicules ou les rendre inutilisables, p. ex. tapis cloutés
E01F 13/04 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières pouvant être déplacées pour permettre ou empêcher le passage
A vehicle barrier apparatus and corresponding methods include a base and a vehicle receiving member coupled to the base and having proximal and distal ends. Also included is a deployable element rotatably coupled to the base and coupled to the vehicle receiving member at a mechanical coupler located closer to the distal end than to the proximal end. The deployable element is configured to receive a transfer force, from the vehicle receiving member, via the mechanical coupler, responsive to the vehicle receiving member receiving an applied force from a vehicle at the proximal end. The deployable element configured to deploy from a stored orientation to a deployed orientation responsive to the transfer force. Accordingly, vehicle force can be transferred and used to deploy the device effectively in a self-triggered configuration without hazards of stored energy.
E01F 13/12 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières pour arrêter de force les véhicules ou les rendre inutilisables, p. ex. tapis cloutés
An x-ray chopper wheel assembly includes a disk chopper wheel and a source-side scatter plate that has a solid cross-sectional area that absorbs x-ray radiation and is substantially smaller than a solid cross-sectional area of the disk chopper wheel. The assembly also includes a support structure that secures the source-side scatter plate substantially parallel to the disk chopper wheel, with a source-side gap between the scatter plate and the disk chopper wheel being a distance that substantially prevents x-ray leakage. An additional, output-side scatter plate may also be provided to reduce x-ray leakage further. Embodiments enable safe operation while significantly reducing weight, which is advantageous for a variety of disk-chopper-wheel-based x-ray scanning systems, especially hand-held x-ray scanners.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G21K 1/10 - Dispositifs de diffusionDispositifs d'absorption
52.
X-RAY DETECTOR WITH MULTI-LAYER DIELECTRIC REFLECTOR
An x-ray detector and a corresponding method of detecting x-rays are disclosed. The detector includes a scintillator structure, light guide, multi-layer dielectric reflective material, and photodetector. The scintillator receives incident x-rays and produces scintillation light. The light guide is mechanically and optically coupled to the scintillator and guides the scintillation light to the photodetector, assisted by the multi-layer dielectric, which at least partially surrounds the light guide and scintillator and confines the scintillation light within the light guide via reflection. The detector can enable transmission imaging using an x-ray pencil beam of a backscatter imaging system so that backscatter and transmission images can be obtained in the same scan. Use of the multi-layer dielectric reflector facilitates compact, inexpensive, flexible, multi-channel detector arrangements from which superior transmission imaging can be obtained, compared with existing detectors.
A sampling apparatus includes a wand extension coupled with a trace detection head and a bulk detection head. The trace detection head collects a maximum amount of a sample for a trace detection analysis. The bulk detection head collects a minimal amount of a substance for use in bulk sample identification.
Aerogel can be coated with a polymerizable resin, which cures to form a polymer- coated aerogel. The coated aerogels can be used structural or thermal insulating component, such as in analytical and scientific devices. Coated aerogels can be further coated with conductive material, a semi-conductive material, a non-conductive material, a resistive material, or a combination thereof.
C08J 9/00 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement
C08J 9/32 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement à partir de compositions contenant des microbilles, p. ex. mousses syntactiques
A system for inspecting a moving person comprises an x-ray source, disposed in a fixed position with respect to the moving person, to generate one or more scanning x-ray beams. Each of the one or more x-ray beams being obliquely incident on either a front of the moving person, a rear of the moving person, or both. The system further comprises one or more backscatter detectors arranged to detect radiation scattered from the moving person, and to produce a detection signal therefrom. The system further comprises a processor and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to produce a backscatter image based on the detection signal. When two or more x-ray beams are implemented, the two or more x-ray beams are temporarily interleaved to prevent crosstalk.
A vehicle barrier apparatus includes a base and a deployable element. The deployable element is rotatably coupled to the base, enabling transition from a stored orientation to a deployed orientation. The deployable element can engage a vehicle physically in the deployed orientation to impair vehicle motion. An actuating mechanism is mechanically coupled to the deployable element cause the deployable element to move from the stored orientation to the deployed orientation responsive to a trigger. The apparatus may include a triggering device that detects the vehicle and provides the trigger to the actuating mechanism responsive to the detection. In addition, or alternatively, the apparatus can include a communications interface that receives a trigger communication from a remote location and causes the trigger to be provided to the actuating mechanism. The apparatus may be portable.
E01F 13/12 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières pour arrêter de force les véhicules ou les rendre inutilisables, p. ex. tapis cloutés
E01F 13/02 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières se tenant debout toutes seules
57.
RADIATION SCANNING SYSTEM WITH VARIABLE FIELD OF VIEW
A radiation scanning system includes a source to output penetrating radiation, a collimator to form a collimated, irradiating fan beam in a plane, and a disk chopper wheel defining one or more apertures that pass at least a portion of the radiation for scanning a target object. The system further includes a translation mechanism that can effect a variable, relative displacement between the disk chopper wheel and the fan beam plane, enabling the fan beam position to be continuously variable. The system may also include field of view (FOV)-limiting plates with radial edges that adjust or steer the FOV for additional flexibility. Accordingly, the FOV may be fixedly set or dynamically adjusted from scan to scan. Scatter plates and a tilted disk chopper wheel may be included to dramatically reduce system weight.
A movable x-ray imager includes a first backscatter x-ray detector assembly. The system also includes a second backscatter x-ray detector assembly that is removably attachable with the movable x-ray imager. The movable x-ray imager and the second backscatter x-ray detector include complementary attachment features configured to secure, removably, the second backscatter x-ray detector with the movable x-ray imager in an arrangement having the second and first backscatter x-ray detectors fixedly oriented with respect to each other.
G01N 23/20008 - Détails de construction des appareils d’analyse, p. ex. caractérisés par la source de rayons X, le détecteur ou le système optique à rayons XLeurs accessoiresPréparation d’échantillons à cet effet
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
G01N 23/203 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la rétrodiffusion
59.
SYSTEM AND KIT FOR X-RAY BACKSCATTER IMAGING WITH REMOVABLE DETECTOR
A movable x-ray imager includes a first backscatter x-ray detector assembly. The system also includes a second backscatter x-ray detector assembly that is removably attachable with the movable x-ray imager. The movable x-ray imager and the second backscatter x-ray detector include complementary attachment features configured to secure, removably, the second backscatter x-ray detector with the movable x-ray imager in an arrangement having the second and first backscatter x-ray detectors fixedly oriented with respect to each other.
An x-ray chopper wheel assembly includes a disk chopper wheel and a source-side scatter plate that has a solid cross-sectional area that absorbs x-ray radiation and is substantially smaller than a solid cross-sectional area of the disk chopper wheel. The assembly also includes a support structure that secures the source-side scatter plate substantially parallel to the disk chopper wheel, with a source-side gap between the scatter plate and the disk chopper wheel being a distance that substantially prevents x-ray leakage. An additional, output-side scatter plate may also be provided to reduce x-ray leakage further. Embodiments enable safe operation while significantly reducing weight, which is advantageous for a variety of disk-chopper-wheel-based x-ray scanning systems, especially hand-held x-ray scanners.
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G21K 1/10 - Dispositifs de diffusionDispositifs d'absorption
A vehicle barrier apparatus includes a base and a deployable element. The deployable element is rotatably coupled to the base, enabling transition from a stored orientation to a deployed orientation. The deployable element can engage a vehicle physically in the deployed orientation to impair vehicle motion. An actuating mechanism is mechanically coupled to the deployable element cause the deployable element to move from the stored orientation to the deployed orientation responsive to a trigger. The apparatus may include a triggering device that detects the vehicle and provides the trigger to the actuating mechanism responsive to the detection. In addition, or alternatively, the apparatus can include a communications interface that receives a trigger communication from a remote location and causes the trigger to be provided to the actuating mechanism. The apparatus may be portable.
E01F 13/12 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières pour arrêter de force les véhicules ou les rendre inutilisables, p. ex. tapis cloutés
E01F 13/02 - Dispositions pour interdire ou limiter la circulation, p. ex. portes, barrières se tenant debout toutes seules
An x-ray scanning system includes an x-ray source that produces a collimated fan beam of incident x-ray radiation. The system also includes a chopper wheel that can be irradiated by the collimated fan beam. The chopper wheel is oriented with a wheel plane containing the chopper wheel substantially non-perpendicular relative to a beam plane containing the collimated fan beam. In various embodiments, a disk chopper wheel's effective thickness is increased, allowing x-ray scanning with end point energies of hundreds of keV using relatively thinner, lighter, and less costly chopper wheel disks. Backscatter detectors can be mounted to an exterior surface of a vehicle housing the x-ray source, and slits in the disk chopper wheel can be tapered for more uniform target irradiation.
G01N 23/201 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffraction de la radiation par les matériaux, p. ex. pour rechercher la structure cristallineRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la diffusion de la radiation par les matériaux, p. ex. pour rechercher les matériaux non cristallinsRecherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en utilisant la réflexion de la radiation par les matériaux en mesurant la diffusion sous un petit angle, p. ex. la diffusion des rayons X sous un petit angle [SAXS]
G21K 1/04 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs utilisant des diaphragmes à ouverture variable, des obturateurs, des hacheurs
G01V 5/00 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée
